The Food Safety and Inspection Service and several other organizations have been investigating a multi-state outbreak of Salmonella Schwarzengrund illnesses involving five case patients from two states.

The Wisconsin Department of Health Services collected three intact Butterball brand ground turkey samples from a home where four of the five case patients live. The FSIS says the case patients and ground turkey Salmonella Schwarzengrund isolates are closely related, genetically.

Anyone who purchased the recalled products is urged to throw them away or return them.